(19)

(11)

EP 0 056 813 A1

(12)

(43) Date of publication: 04.08.1982 Bulletin 1982/31 (21) Application number: 81902173.0 (22) Date of filing: 04.08.1981

(51) International Patent Classification (IPC):  F02C 3/ 30( . ) F02C 6/ 00( . ) F22B 35/ 06( . ) F01K 21/ 04( . ) F22B 35/ 00( . ) (86) International application number: PCT/US1981/000996 (87) International publication number: WO 1982/000493 (18.02.1982 Gazette 1982/06)

(84) Designated Contracting States: CH DE FR GB LI (30) Priority: 04.08.1980 US 19800175287 (71) Applicant: INTERNATIONAL POWER TECHNOLOGY, INC. Sunnyvale, CA 94086 (US)	(72) Inventor: CHENG, Dah Yu Los Altos Hills, CA 94022 (US) (74) Representative: Reinländer & Bernhardt Patentanwälte  Orthstrasse 12 D-8000 München 60 D-8000 München 60 (DE)